they are he going to be katy perry, dave mathews, stevie wonder, bruce springsteen and jay-z on pit bull. performers throughout the country and events at battle ground states trying to boost the crowds. in 2008 the president did an event in the final weekend, in a state he was not winning, but he was trying to expand the map and trying to win republicans over to his column and this side, more on defense, states he won last time that he wants to keep in his column, wisconsin tlie visit this final weekend. in ohio six visits and the reason they say they're doing that and playing that defense, they think if the president can win wisconsin and ohio, et cetera, it's going to be sort of a midwestern firewall that will be hard for mitt romney to get to 270 electoral votes to win. >> ed henry it sounded like the band had come to conclusion and probably thought you'd be able to do the rest of your sound biting in peace, but no, they're back with another number. >> the peace of a lawn mower. >> a little bit of revenge. >> good one. >> gretchen: is it true the president is changing his message? bec